Real-time placeshifting of media content to paired devices

ABSTRACT

Methods, devices, and systems are provided for placeshifting a media program. An exemplary method involves a media device storing identification information for a client device coupled to a network and receiving a request to transfer a media program available for presentation on a primary display device in a first format via the media device. In response to the request, a peer-to-peer communication session with the client device over the network is established using the identification information and an encoded content stream corresponding to the media program is transferred to the client device via the peer-to-peer communication session.

TECHNICAL FIELD

The following description generally relates to providing media contentto a secondary display device during a placeshifting session initiatedwhile media content is presented on a primary display device.

BACKGROUND

Media content can now be received from any number of different sources.Broadcast television content, for example, can typically be received atset-top box (STB) or other receiver that receives a direct broadcastsatellite (DBS), cable and/or terrestrial broadcast signal, and suchreceived content may also be stored in a personal or digital videorecorder (DVR) or the like for viewing at a later time (“timeshifting”). Live or recorded content can also be “placeshifted” to allowviewing at remote locations away from the viewer's primary televisionset. Due to the proliferation of portable consumer electronic deviceswith display and network communication capabilities, viewers have moreopportunities to placeshift content. Additionally, consumer expectationsare likely to increase over time based on their perception of thecurrent state of technological advances. Accordingly, is now desirableto create systems and methods for placeshifting media content in anexpeditious manner with reduced manual interaction to provide a moresatisfactory user experience. Other desirable features andcharacteristics may also become apparent from the subsequent detaileddescription and the appended claims, taken in conjunction with theaccompanying drawings and this background section.

BRIEF SUMMARY

According to various exemplary embodiments, systems, devices and methodsare provided for placeshifting a media program available forpresentation on a primary display device in a first format via a mediadevice coupled to the primary display device. One exemplary methodinvolves the media device storing identification information for aclient device coupled to a network, receiving a request to transfer themedia program, and in response to the request, establishing apeer-to-peer communication session with the client device over thenetwork using the identification information and transferring an encodedcontent stream corresponding to the media program that has a formatdifferent from the first format to the client device via thepeer-to-peer communication session.

In other embodiments, an apparatus for a media device is provided. Themedia device includes a first interface configured to provide a firstcontent stream that corresponds to a media program and has a firstformat to a primary display device, a network interface configured tocommunicate via a network, a data storage element configured to maintainidentification information for a client device communicatively coupledto the network, and an input element configured to receive aplaceshifting request. The media device also includes a control modulecoupled to the data storage element, the input element, and the networkinterface, wherein in response to the placeshifting request, the controlmodule is configured to establish a peer-to-peer communication sessionwith the client device over the network using the identificationinformation and transfer a second content stream that corresponds to themedia program and has a second format different from the first format tothe client device via the peer-to-peer communication session.

In another embodiment, a method of placeshifting a media programinvolves associating a client device with a media device coupled to aprimary display device, providing the media program to the primarydisplay device via the media device, detecting, by the media device, aplaceshifting request gesture while providing the media program to theprimary display device, and in response to the placeshifting requestgesture, establishing a peer-to-peer communication session with theclient device over a network based on the association with the mediadevice and providing the media program to the client device over thenetwork via the peer-to-peer communication session.

Various embodiments, aspects and other features are described in moredetail below.

BRIEF DESCRIPTION OF THE DRAWING FIGURES

Exemplary embodiments will hereinafter be described in conjunction withthe following drawing figures, wherein like numerals denote likeelements, and

FIG. 1 is a block diagram of a media system in accordance with one ormore embodiments;

FIG. 2 is a flowchart of an exemplary placeshifting process suitable foruse with the media system of FIG. 1;

FIG. 3 is a flowchart of an exemplary pairing process suitable for usewith the media system of FIG. 1;

FIG. 4 is a diagram illustrating a sequence of communications within themedia system of FIG. 1 in accordance with one exemplary embodiment ofthe placeshifting process of FIG. 2;

FIG. 5 is a block diagram of a media system in accordance with one ormore embodiments;

FIG. 6 is a flowchart of an exemplary server placeshifting processsuitable for use with the media system of FIG. 5; and

FIG. 7 is a diagram illustrating a sequence of communications within themedia system of FIG. 5 in accordance with one exemplary embodiment ofthe server placeshifting process of FIG. 6.

DETAILED DESCRIPTION

The following detailed description of the invention is merely exemplaryin nature and is not intended to limit the invention or the applicationand uses of the invention. Furthermore, there is no intention to bebound by any theory presented in the preceding background or thefollowing detailed description.

Embodiments of the subject matter described herein generally relate toplaceshifting media content available for presentation on a primarydisplay device, such as a television, to a secondary display device,such as a portable electronic device, substantially in real-time andon-demand with reduced manual overhead and delay. As used herein, “mediacontent,” “media program,” or variants thereof should be understood asreferring to any audio, video, audio/visual or other programming in anystreaming, file-based or other format. As described in greater detailbelow, a media device associated with the primary display deviceestablishes an association (or pairing) with the secondary displaydevice. In response to receiving a placeshifting request, the mediadevice utilizes the association to establish a peer-to-peercommunication session with the paired secondary display device.Thereafter, the media device initiates a transfer of the media contentcurrently being presented (or otherwise selected for presentation) onthe primary display device to the secondary display device via thepeer-to-peer communication session in an automated manner. In otherwords, the peer-to-peer communication session is established and theplaceshifting session via the peer-to-peer communication session isinitiated without requiring additional manual interaction beyond themanual interaction to provide the placeshifting request. In one or moreembodiments, the media device includes a sensing arrangement capable ofdetecting gestures by a person in the vicinity of the media device(e.g., a viewer of the primary display device), wherein the media deviceidentifies the placeshifting request in response to recognizing agesture detected by the sensing arrangement as matching a designatedplaceshifting request gesture. Thus, a viewer of the primary displaydevice may initiate placeshifting to a secondary display device bysimply making a gesture without having to manipulate a user inputinterface of the media device (e.g., a remote control or the like)and/or a user input interface of the secondary display device (e.g., akeypad or the like) to facilitate the placeshifting.

As described in greater detail below in the context of FIGS. 1-4, inaccordance with one or more embodiments, the media device scans orotherwise accesses a local network to detect the presence of thesecondary display device in the vicinity of the media device and/orprimary display device. In response to discovering the secondary displaydevice, the media device obtains, from the secondary display device,unique identification information for the secondary display device onthe local network and stores that identification information to maintainan association with the secondary display device. Thereafter, the mediadevice provides a media program to the primary display device forpresentation to a viewer. In response to receiving a placeshiftingrequest from a viewer of the primary display device, the media deviceidentifies the secondary display device as the desired destination forthe media program and utilizes the identification information toautomatically establish a peer-to-peer communication session via thelocal network with a placeshifting application on the secondary displaydevice. Thereafter, the media device initiates a placeshifting sessionwith the placeshifting application and automatically transfers orotherwise transmits, via the peer-to-peer communication session, acontent stream corresponding to the media program being provided to theprimary display device. In this regard, in response to receiving theplaceshifting request, the media device may encode the media programsubstantially in real-time or on-the-fly in an appropriate format forcommunication over the network and subsequent presentation by thesecondary display device. Accordingly, the encoded content streamtransmitted by the media device has a different encoding format than thecontent stream provided to the primary display device.

In other embodiments, as described in greater detail below in thecontext of FIGS. 5-7, in response to receiving a placeshifting requestfrom a viewer of the primary display device, the media device identifiesthe secondary display device as the desired destination for the mediaprogram and automatically transmits or otherwise provides storedidentification information for the secondary display device to a contentserver along with an indication of the media program being provided tothe primary display device at the time the placeshifting request wasreceived. Thereafter, the content server utilizes the receivedidentification information to automatically establish a peer-to-peercommunication session with a placeshifting application on the secondarydisplay device via a network. The content server then initiates aplaceshifting session with the placeshifting application andautomatically transfers or otherwise transmits a content streamcorresponding to the media program presented on the primary displaydevice. Again, the content stream provided by the content server to thesecondary display device is encoded using an appropriate encoding formatfor communication over the network and subsequent presentation by thesecondary display device, which may be different from the encodingformat of the content stream provided to the primary display device.

FIG. 1 depicts a media system 100 configured to support transferring orotherwise placeshifting a media program (or media content) available forpresentation on a primary display device 102, such as a television, to asecondary display device 104 that has been previously paired with amedia device 106 associated with the primary display device 102. Thesecondary display device 104 may be realized as any sort of electronicdevice capable of playing or otherwise presenting media content, such asa mobile telephone, a laptop or notebook computer, a tablet computer, adesktop computer, a personal digital assistant, a video game player, aportable media player and/or any other media playback device capable ofrendering media content received via a network 108. For convenience, butwithout limitation, the secondary display device 104 may alternativelybe referred to herein as a client device.

As described in greater detail below, the media device 106 communicateswith the client device 104 via the network 108 and stores or otherwisemaintains information identifying the client device 104 to establish apairing (or association) with the client device 104. Thereafter, inresponse to receiving a request to transfer or placeshift a mediaprogram available for presentation on the primary display device 102 tothe client device 104, the media device 106 utilizes the storedidentification information for the client device 104 to automaticallyestablish a peer-to-peer communication session 109 with the clientdevice 104 via the network 108 and automatically transfer the mediaprogram to the client device 104 via the peer-to-peer communicationsession 109. In exemplary embodiments, the media device 106 provides orotherwise furnishes the media program to the primary display device 102as a media content stream having a format that is capable of beingdecoded and/or presented by the primary display device 102. In responseto the receiving the placeshifting request, the media device 106automatically encodes (or transcodes) the media program into a differentformat suitable for transmission via the network 108 and subsequentdecoding and/or presentation by the client device 104 and transfers themedia program to the client device 104 by providing the encoded streamdirectly to the client device 104 via the peer-to-peer communicationsession 109. For example, when the primary display device 102 isrealized as a digital television, the media device 106 may provide themedia program to the primary display device 102 in an uncompressed videoformat (e.g., an uncompressed encoding format in accordance with thehigh-definition multimedia interface (HDMI) specification), and inresponse to the placeshifting request, encode the media program to theH.264 encoding format (e.g., MPEG-4 Part 10 or Advanced Video Coding)before transferring the media program to the client device 104.

In exemplary embodiments, the client device 104 includes or otherwiseexecutes a media placeshifting application (or process) 110 configuredto support establishing the peer-to-peer communication session 109 withthe media device 106 via the network 108 and receiving the encoded mediacontent stream from the media device 106 via the peer-to-peercommunication session 109. The placeshifting application 110 isconfigured to allow the peer-to-peer communication session 109 to beautomatically established with the media device 106 without any manualinteraction, which, in turn, allows the media device 106 toautomatically transfer the media program to the client device 104 viathe network 108 without any additional manual interaction after theplaceshifting request is received by the media device 106. Thereafter,the placeshifting application 110 may decode the received media contentstream and present the media program on the display 112 associated withthe client device 104, or alternatively, store the media program on theclient device 104 for subsequent presentation on the display 112.

As illustrated in FIG. 1, the client device 104 includes a processingsystem 116 that is coupled to the display 112 and a networking interface118, wherein the processing system 116 is configured to execute orotherwise support the placeshifting application 110 and additionalprocesses, tasks, functions, and/or operations described in greaterdetail below. The processing system 116 may be realized using anysuitable processing system and/or devices, such as, for example, one ormore processors, central processing units (CPUs), graphics processingunits (GPUs), controllers, microprocessors, microcontrollers, processingcores and/or other computing resources configured to support the subjectmatter described herein. In exemplary embodiments, the client device 104includes a data storage element (or memory) 120 that is coupled to orotherwise accessed by the processing system 116. The memory 120 may berealized using as random access memory (RAM), read only memory (ROM),flash memory, magnetic or optical mass storage, or any other suitableconfiguration of non-transitory short or long term data storage or othernon-transitory computer-readable media capable of storing programminginstructions for execution by the processing system 116. The storedprogramming instructions, when read and executed by the processingsystem 116, cause processing system 116 to create, generate, orotherwise facilitate the placeshifting application 110 that supports theplaceshifting process 200 described in greater detail below in thecontext of FIG. 2.

The display 112 generally represents the component, hardware or the likeof the client device 104 that is capable of displaying, rendering, orotherwise presenting media content and/or other imagery that is receivedby or otherwise stored on the client device 104. In this regard, thedisplay 112 may be realized as a monitor, screen, or anotherconventional electronic display device capable of graphically presentingmedia content and/or other imagery.

The networking interface 118 generally represents the component,hardware or the like of the client device 104 that facilitatescommunications with the network 108. In this regard, the network 108 maybe realized as any communications network capable of supportingtransmission of data and/or information via a peer-to-peer communicationsession 109 between devices 104, 106. For example, in one embodiment,the network 108 may be realized as a wireless local area network (WLAN)(e.g., in accordance with one or more of the IEEE 802.11 standards) thatsupports the transmission control protocol and/or internet protocol(TCP/IP) or other conventional protocols, in which case the networkinginterface 118 is realized as a wireless adapter, a wireless transceiver,a wireless network interface controller, or the like. In anotherembodiment, the network 108 is realized as a wireless personal areanetwork (PAN) or another suitable short range network, such as, forexample, a Bluetooth ad-hoc network, in which case the networkinginterface 118 is realized as a Bluetooth adapter (or transceiver). Inyet other embodiments, the network 108 may be realized as a cellularcommunications network, a wired local area network, the Internet, or thelike, in which case, the networking interface 118 may be realized as acellular transceiver, a wired network interface controller (e.g., anEthernet adapter), or the like. That said, in exemplary embodimentsdescribed herein in the context of FIGS. 1-4, the network 108 isrealized as a local network that supports communications between themedia device 106 and other secondary display devices within a vicinityof the media device 106 and/or the primary display device 102, such as aWLAN or a Bluetooth PAN, wherein the networking interface 118 isappropriately realized as a wireless network adapter or a Bluetoothadapter.

Still referring to FIG. 1, in the illustrated embodiment, the mediadevice 106 is any component, hardware or the like capable of receivingand processing media content and providing media content to the primarydisplay device 102 for presentation on the primary display device 102.As described above, the primary display device 102 generally representsa television, monitor, liquid crystal display (LCD), light emittingdiode (LED) display, plasma display, or the like that graphicallypresents, renders, or otherwise displays imagery and/or videocorresponding to media content provided by the media device 106. In someembodiments, media device 106 is a set-top box (STB) or similar systemthat is able to receive television programming and/or to record certainmedia programs. Exemplary embodiments of media device 106 will thereforeinclude a receiver interface 132 for receiving satellite, cable and/orbroadcast programming signals from broadcast content sources 122, aswell as a data storage medium 134 (e.g., a hard disk, flash memory, oranother suitable non-volatile data storage element) to support a digitalvideo recorder (DVR) feature and/or functionality, a display interface136 for providing imagery and/or video corresponding to a media programto the primary display device 102, one or more input elements (e.g., aninput/output interface 144 to a remote control or other user inputdevice 148) for receiving user inputs to media device 106, and a controlmodule 130 that directs, manages, or otherwise controls the operationsof the media device 106 as appropriate. For convenience, but withoutlimitation, the data storage medium 134 is alternatively referred toherein as a DVR. In some embodiments, the media device 106 may alsoinclude an access card interface or card reader 138 adapted to receivean access card 139 (or viewing card) configured to ensure that theviewer is authorized to view media content provided to the primarydisplay device 102. In this regard, the access card 139 may includeincludes unique identification information associated with a particularsubscriber to the broadcast content source 122 or otherwise includeinformation that facilitates receiving and/or decoding media contentprovided by the broadcast content source 122.

The network interface 140 generally represents the component, hardwareor the like of the media device 106 that facilitates communications withthe client device 104 via the network 108. Accordingly, depending on theembodiment, the network interface 140 may be realized as a wirelessadapter, a wireless transceiver, a wireless network interfacecontroller, a Bluetooth adapter (or transceiver), a cellulartransceiver, a wired network interface controller (e.g., an Ethernetadapter), or the like as appropriate. That said, in exemplaryembodiments described herein in the context of FIGS. 1-4, the networkinterface 140 is realized as a wireless network adapter or a Bluetoothadapter that facilitates communications via a local network withsecondary display devices within a vicinity of the media device 106and/or the primary display device 102. It should be noted that in someembodiments, the frequencies utilized by the networking interface 140are different from the frequencies utilized by the I/O interface 144. Inthis regard, the networking interface 140 may operate on an unlicensedradio band (e.g., 2.4 GHz carrier frequency) while the I/O interface 144operates at a lower frequency, such as, for example, consumer infrared(e.g., carrier frequency in the range of about 30 kHz to about 60 kHz).

In exemplary embodiments, input elements to the media device 106 alsoinclude a sensing arrangement 142 that is capable of sensing, measuring,or otherwise detecting an environmental condition proximate to orotherwise in the vicinity of the media device 106 and/or the primarydisplay device 102. For example, in one embodiment, the sensingarrangement 142 is realized as a motion sensing arrangement (or motionsensor) that is configured to sense, measure, or otherwise detectphysical motions or gestures 150 by the viewer of the primary displaydevice 102 or other users in the vicinity of the media device 106 and/orthe primary display device 102. The control module 130 is coupled to thesensing arrangement 142 to receive the output indicative of theenvironmental condition sensed, measured, detected, or otherwisequantified by the sensing arrangement 142. As described in greaterdetail below, in accordance with one or more embodiments, the controlmodule 130 analyzes or otherwise processes the output of the sensingarrangement 142 to determine or otherwise identify whether the detectedenvironmental condition (e.g., a particular gesture 150 by a viewer ofthe primary display device 102) is indicative of a desire to placeshiftor otherwise transfer a media program that is concurrently beingpresented on the primary display device 102 at the time the placeshiftrequest is identified or otherwise received.

It should be appreciated that FIG. 1 depicts merely one exemplaryembodiment of a media device 106, and in practice, the media device 106may be physically and/or logically implemented in any manner to suit theneeds of a particular embodiment. In this regard, in some embodiments,the components in media device 106 may be provided within a commonchassis or housing as illustrated in FIG. 1, although equivalentembodiments may implement media device 106 with any number ofinter-connected but discrete components or systems. For example, in someembodiments, the media device 106 may be realized as a combination of aSTB and a placeshifting device, wherein some features of the mediadevice 106 (e.g., the DVR 134, the receiver 132, the display interface136, I/O interface 144 and/or sensing arrangement 142) are implementedby the STB and other features of the media device 106 (e.g., the networkinterface 140) are implemented by the placeshifting device, wherein theplaceshifting device works in conjunction with the STB to shift theviewing experience from a home television (e.g., primary display device102) to a viewing display 112 on the client device 104 (e.g., viaplaceshifting application 110) that is accessed via network 108.Examples of placeshifting devices that may be used in some embodimentsof media device 106 could include any of the various SLINGBOX productsavailable from Sling Media of Foster City, Calif., although otherproducts or services could be used in other embodiments. Many differenttypes of placeshifting devices are generally capable of receiving mediacontent from an external source, such as any sort of DVR or STB, cableor satellite programming source, DVD player, content servers, and/or thelike. In other embodiments, placeshifting features are incorporatedwithin the same device that provides content-receiving or othercapabilities. Media device 106 may be a hybrid DVR and/or receiver, forexample, that also provides transcoding and placeshifting features.Examples of conventional placeshifting functions, features, systems andstructures are described in United States Patent Publication No.2006/0095471, although the features described herein could beequivalently applied with any number of other techniques and structuresin addition to those described in that particular publication.

Still referring to FIG. 1, in the illustrated embodiment, media device106 is capable of receiving digital broadcast satellite (DBS) signalstransmitted from a broadcast source 122, such as a satellite, using anantenna 124 that provides received signals to the receiver 132.Equivalent embodiments, however, could receive programming at receiver132 from any sort of cable connection, broadcast source, removablemedia, network service, external device and/or the like. The DVR 134feature stores recorded programming (e.g., broadcast programmingreceived via receiver 132) on a hard disk drive, memory, or otherstorage medium as appropriate in response to user/viewer programminginstructions, wherein the recorded programming may be subsequentlyviewed on primary display device 102 or client device 104 via network108. Content stored in DVR 134 may be any sort of file-based programmingor other content that is accessible to media device 106. Additionally,media content in DVR 134 may be stored in any sort of compressed oruncompressed format, as desired, and may be encoded or transcoded asdesired for effective receipt, storage, retrieval and playing.

Control module 130 may be realized as any suitable combination ofhardware, firmware, and/or other components of the media device 106capable of directing, managing or otherwise controlling the operationsof media device 106 and supporting the placeshifting process 200described in greater detail below in the context of FIG. 2. The controlmodule 130 may include one or more processing systems and/or devices,such as, for example, one or more processors, central processing units(CPUs), graphics processing units (GPUs), controllers, microprocessors,microcontrollers, processing cores and/or other computing resources. Themedia device 106 includes a data storage element (or memory) 146 that iscoupled to or otherwise accessed by the control module 130 and storesprogramming instructions that, when read and executed, cause the controlmodule 130 to perform various tasks, functions, processes and/oroperations to control operations of the media device 106 and support theplaceshifting process 200 described in greater detail below. In someembodiments, the control module 130 is implemented as a “system on achip” (SoC) that incorporates a hybrid microcontroller with memory,input/output and other features to perform the various signal processingand other actions of media device 106, and in which case a separatememory 146 may not be provided.

FIG. 2 depicts an exemplary embodiment of a placeshifting process 200suitable for implementation by media device in a media system, such asmedia device 106, to placeshift media content from a primary displaydevice to a secondary display device substantially in real-time oron-demand. The various tasks performed in connection with theillustrated process 200 may be implemented using software, hardware,firmware, or any combination thereof. For illustrative purposes, thefollowing description may refer to elements mentioned above inconnection with FIG. 1. In practice, portions of the placeshiftingprocess 200 may be performed by different elements of the media device106, such as, for example, the control module 130, the receiverinterface 132, the display interface 136, the network interface 140, thememory 146, the sensing arrangement 142 and/or the I/O interface 144. Itshould be appreciated that the placeshifting process 200 may include anynumber of additional or alternative tasks, the tasks need not beperformed in the illustrated order and/or the tasks may be performedconcurrently, and/or the placeshifting process 200 may be incorporatedinto a more comprehensive procedure or process having additionalfunctionality not described in detail herein. Moreover, one or more ofthe tasks shown and described in the context of FIG. 2 could be omittedfrom a practical embodiment of the placeshifting process 200 as long asthe intended overall functionality remains intact.

Referring to FIG. 2, and with continued reference to FIG. 1, inexemplary embodiments, the placeshifting process 200 begins by pairingor otherwise establishing an association between the media device andone or more secondary devices (task 202). As described in greater detailbelow in the context of FIG. 3, in exemplary embodiments, the mediadevice 106 detects or otherwise identifies the presence of the clientdevice 104 in the vicinity of the media device 106 via the network 108,for example, by performing a discovery procedure on the network 108 orotherwise scanning the network 108 for other devices. The media device106 obtains identification information for the client device 104 on thenetwork 108 from the client device 104 via the network 108, and storesor otherwise maintains the identification information for the clientdevice 104 in memory 146. The identification information may include anaddress of the client device 104 on the network 108, a unique identifierassociated with a hardware component of the client device 104 used toaccess the network 108 (e.g., a Bluetooth address, a media accesscontrol address, or the like), a unique identifier associated with theclient device 104 (e.g., a mobile phone number, an international mobilestation equipment identity number, a unique number assigned to theclient device 104 by the media system 100, or the like), and/or modeland/or versioning information for the client device 104 (e.g., the typeof electronic device, make and/or model of electronic device, firmwareversion, and the like). The media device 106 may also obtain networkauthentication information from the client device 104, such as, forexample, secure sockets layer (SSL) keys, cryptographic keys, or thelike. In this manner, the client device 104 is paired or associated withthe media device 106, wherein the media device 106 utilizes the storedidentification information and/or authentication information for thepaired client device 104 to automatically and securely placeshift mediacontent from the primary display device 102 to the client device 104, asdescribed in greater detail below. In a similar manner, any othersecondary display devices in the vicinity of the media device 106 may bepaired with the media device 106 to support placeshifting media contentfrom the primary display device 102 to different secondary displaydevices.

After the media device has been paired with one or more secondarydisplay devices, in exemplary embodiments, the placeshifting process 200continues by identifying media content selected for viewing on theprimary display device and providing the selected media content to theprimary display device in a first encoding format (tasks 204, 206). Forexample, a viewer of the primary display device 102 may manipulate aremote control or other user input device 148 associated with the mediadevice 106 to access a program guide feature provided by the mediadevice 106 and select or otherwise identify a broadcast media programavailable from the broadcast source 122 for viewing on the primarydisplay device 102. In response, the media device 106 obtains thebroadcast stream corresponding to the selected media program from thebroadcast source 122 via the receiver 132 and provides that broadcaststream to the primary display device 102 (e.g., via the displayinterface 136) in the appropriate encoding format. For example, themedia device 106 may receive a broadcast stream from the broadcastsource 122 in the MPEG-2 encoding format and convert the broadcaststream from the MPEG-2 encoding format to an uncompressed video encodingformat (e.g., HDMI) that is provided to the primary display device 102.In response to receiving the broadcast stream, the primary displaydevice 102 renders or otherwise displays the imagery and/or video of theselected broadcast media program. In some embodiments, before providingthe selected broadcast media program to the primary display device 102,the media device 106 and/or control module 130 accesses the access card139 to obtain the subscriber account information associated with themedia device 106 and verifies or otherwise confirms the subscriberaccount information allows the selected broadcast media program to beviewed on the primary display device 102 before providing the selectedbroadcast media program stream to the primary display device 102.Alternatively, a viewer of the primary display device 102 may manipulatethe remote control or other user input device 148 associated with themedia device 106 to access the DVR feature provided by the media device106 and select or otherwise identify a stored (or recorded) mediaprogram in the DVR 134 for viewing on the primary display device 102. Inresponse, the media device 106 obtains the stored stream correspondingto the selected media program from the DVR 134 and provides that storedcontent stream to the primary display device 102. In some embodiments,the media device 106 stores media programs in the DVR 134 in the sameuncompressed video encoding format as is provided to the primary displaydevice 102.

In exemplary embodiments, the placeshifting process 200 continues byreceiving an indication or request to placeshift or otherwise transferthe media content on the primary display device to a secondary device(task 208). In accordance with one or more embodiments, the controlmodule 130 monitors the sensing arrangement 142 for an environmentalcondition indicative of a desire to placeshift media content. Forexample, the sensing arrangement 142 may be realized as a motion sensorwith a particular gesture or another quantifiable motion patterndetectable by the sensing arrangement 142 being designated or otherwisepredefined as indicating a desire to placeshift content (e.g., thedesignated placeshifting request gesture). The control module 130 maymonitor the output of the sensing arrangement 142 to recognize, detect,or otherwise identify when the output of the sensing arrangement 142indicates a gesture 150 by the viewer that matches the designatedplaceshifting request gesture. In alternative embodiments, the controlmodule 130 may receive the indication or request to placeshift mediacontent via the user input device 148, for example, in response to theviewer of the primary display device 102 manipulating the user inputdevice 148 to access a menu or other GUI element presented by the mediadevice 106 on the primary display device 102 to indicate theplaceshifting request or otherwise select button or other input elementof the user input device 148 to indicate the placeshifting request.

In accordance with one or more embodiments, the designated placeshiftingrequest gesture may be configured or otherwise established by theviewer. For example, the viewer may manipulate the user input device 148to initiate a gesture definition routine performed by the media device106, and in response, the media device 106 may present or otherwiseprovide a graphical user interface (GUI) display on the primary displaydevice 102 instructing the viewer to make the desired gesture that theviewer would like to designate as the placeshifting request gesture.Thereafter, the viewer may perform the desired gesture, wherein thecontrol module 130 captures the output of the sensing arrangement 142and generates or otherwise creates a signature for the gesture based onthe output of the sensing arrangement 142. In this regard, the signaturefor the gesture represents the characteristics or pattern of the outputgenerated by the sensing arrangement 142 in response to the gesture. Thecontrol module 130 stores or otherwise maintains the signature for thedesignated placeshifting request gesture in memory 146, wherein todetect or otherwise identify a placeshifting request, the control module130 compares the output of the sensing arrangement 142 to the designatedplaceshifting request gesture signature in memory 146 and recognizes,detects, or otherwise identifies a placeshifting request when the outputof the sensing arrangement 142 matches or is otherwise substantiallyequal to the stored gesture signature.

Still referring to FIG. 2, in response to receiving indication of adesire to placeshift the media program selected for viewing on theprimary display device, in exemplary embodiments, the placeshiftingprocess 200 continues by capturing or otherwise obtaining information ormetadata the describes the current display status of the media programon the primary display device at or near the instant in time when theplaceshifting request was received or otherwise detected (task 210). Forexample, the control module 130 may capture or otherwise obtain statusinformation describing the state of the media program on the primarydisplay device 102, such as, for example, a timestamp or other indicatorof the portion of (or location within) the media program content streamthat is currently being displayed and/or rendered on the primary displaydevice 102 at the time the placeshifting request is received and anindication of the playback state of the media program (e.g., whether themedia program was paused or playing). As described in greater detailbelow, in exemplary embodiments, the captured metadata or informationdescribing the displayed state of the media program on the primarydisplay device 102 is provided to the secondary device for correlatingpresentation of the placeshifted instance of the media program on theclient device 104 with the instance of the media program presented onthe primary display device 102.

In exemplary embodiments, the placeshifting process 200 continues byidentifying or otherwise determining a destination device forplaceshifting the media content from among the secondary devices pairedwith the media device (task 212). For example, the media device 106 maybe paired with a plurality of different secondary display devices,wherein to determine the destination device, the media device 106 mayaccess the network 108 to detect or otherwise identify which pairedsecondary devices are currently in the vicinity of the media device 106and available for placeshifting. For example, the media device 106 mayenable the network interface 140 in response to the placeshiftingrequest and scan the network 108 for any devices connected to thenetwork 108 that are broadcasting identification information thatmatches stored identification information in memory 146 that isassociated with a paired secondary display devices. If the media device106 identifies the client device 104 as the only paired secondarydisplay device connected to the network 108, the media device 106automatically identifies the client device 104 as the destinationdevice. In other embodiments, when multiple paired secondary devices aredetected on the network 108 and identified by the media device 106 asbeing available for placeshifting, the media device 106 may identify theclient device 104 as the destination device in response to receiving anindication from the viewer.

In accordance with one or more embodiments, the media device 106presents a GUI display on the primary display device 102 that lists orotherwise indicates the paired secondary devices identified by the mediadevice 106 as being available for placeshifting, wherein the viewermanipulates the user input device 148 or performs an additional gesture150 to select or otherwise indicate the client device 104 as the desireddestination device from among the plurality of paired secondary devices.For example, the media device 106 may present a GUI display on theprimary display device 102 that includes graphical representations ofthe available paired secondary devices arranged with a particularorientation with respect to one another, wherein the media device 106identifies the client device 104 in response to detecting a gesture 150via the sensing arrangement 142 that is in a direction that correspondsto the direction or orientation of the graphical representation ofclient device 104 on the primary display device 102 with respect to thegraphical representations of the remaining available paired secondarydevices on the primary display device 102.

After identifying the desired destination device, the placeshiftingprocess 200 continues by automatically establishing a peer-to-peercommunication session with the destination device using the storedidentification information for the destination device (task 214). Inthis regard, the media device 106 automatically establishes thepeer-to-peer communication session 109 without requiring any furthermanual interaction with the media device 106. For example, if thenetwork 108 is a WLAN, the media device 106 may establish thepeer-to-peer communication session 109 with the placeshiftingapplication 110 on the client device 104 by creating a connectionrequest using the stored identification information and/orauthentication information for the client device 104 and transmitting orotherwise broadcasting the connection request on the network 108.Alternatively, if the network 108 is a Bluetooth PAN, the media device106 may establish the peer-to-peer communication session 109 with theplaceshifting application 110 on the client device 104 by enabling orotherwise powering the network interface 140 to transition the networkinterface 140 out of a lower power mode (e.g., an idle mode, a sleepmode, or the like) and establish the ad-hoc Bluetooth network 108.Thereafter, the media device 106 creates a connection request for theclient device 104 using the stored identification information andtransmits the connection request to the client device 104, which, inturn, may transition the Bluetooth transceiver or other networkinterface of the client device 104 from a low power mode to an activemode. In this regard, prior to the placeshifting request, the mediadevice 106 need not be coupled to the network 108, and the network 108between the media device 106 and the client device 104 may not evenexist (e.g., in the case of an ad-hoc network). It should be noted thatthe subject matter described herein is not intended to be limited to anyparticular peer-to-peer communications protocol and/or any particulartype of local network, and the examples described herein merelyrepresent one potential implementation.

In exemplary embodiments, the placeshifting process 200 continues byencoding the media content selected for presentation on the primarydisplay device into a different encoding format than the media contentstream provided to the primary display device (task 216). For example,the media device 106 may obtain the media program stream for theselected media program currently being presented on the primary displaydevice 102 and encode (or transcode) the media program stream into adifferent format suitable for communication via the network 108 andpresentation on the client device 104. In this regard, the media device106 encodes the media program provided to the primary display device 102on-the-fly or on-demand and substantially in real-time in response tothe placeshifting request. In one embodiment, when the media programbeing presented on the primary display device 102 is a broadcast mediaprogram, the control module 130 obtains the broadcast content stream forthe media program from the receiver 132 and converts or transcodes thebroadcast content stream for the selected media program to an encodedcontent stream with a format more suitable for communications over thenetwork 108 and/or presentation on the client device 104. For example,the control module 130 may convert or otherwise transcode a broadcaststream received from the broadcast source 122 from the MPEG-2 encodingformat to the H.264 encoding format. Alternatively, the control module130 may convert or otherwise transcode the content stream being providedto the primary display device 102 from the uncompressed video encodingformat to the H.264 encoding format. In some embodiments, the controlmodule 130 may utilize stored identification information for the clientdevice 104 to identify the new encoding format and/or file format thatshould be utilized for placeshifting the media program to that clientdevice 104. For example, if the identification information for theclient device 104 indicates the client device 104 is a particular typeof device, a particular make and/or model, and/or a particular firmwareversion, the control module 130 may identify the desired encoding formatand/or file format for that particular device configuration from among aplurality of possible encoding formats supported by the control module130 and encode the media program in that identified format.

In some embodiments, encoding the selected media program into adifferent encoding format also includes the control module 130packetizing or otherwise encapsulating the selected media program forcommunications via the network 108. For example, if the network 108 is aWLAN, the control module 130 may obtain the broadcast content stream forthe selected media program from the receiver 132 and convert thebroadcast content stream for the selected media program to an encodedcontent stream comprising a sequence of media content encapsulated inpackets that are formatted in accordance with IEEE 802.11 specification.Similarly, if the network 108 is a PAN, the control module 130 mayconvert the content stream for the selected media program to an encodedcontent stream comprising a sequence of media content encapsulated inpackets that are formatted in accordance with IEEE 802.15 specification.

After the selected media program is encoded with the proper format, theplaceshifting process 200 continues by transferring or otherwiseproviding the encoded media content directly to the destination devicevia the peer-to-peer communication session and transferring or otherwiseproviding the metadata describing the status of the media program on theprimary display device to the destination device for correlatingpresentation of the placeshifted media program with the media program onthe primary display device (tasks 218, 220). In this regard, the mediadevice 106 initiates a placeshifting session with the client device 104and automatically transmits the encoded content stream corresponding tothe media program presented on the primary display device 102 directlyto the placeshifting application 110 on the client device 104 over thenetwork 108 via the peer-to-peer communication session 109.

In accordance with one or more embodiments, in response to receiving theencoded content stream from the media device 106 via the peer-to-peercommunication session 109, the placeshifting application 110 displays,on the display 112 of the client device 104, a GUI display including oneor more GUI elements that may be manipulated by the user of the clientdevice 104 to either initiate playback of the placeshifted media programon the client device 104 or store the placeshifted media program forsubsequent viewing. In this regard, if the user of the client device 104manipulates or otherwise selects a GUI element to begin playback of themedia program on the display 112, the placeshifting application 110utilizes the metadata describing the display status of the media programon the primary display device 102 to correlate the playback on thedisplay 112. For example, if the display status metadata indicates thatthe media program on the primary display device 102 is paused at aparticular location (or timestamp) within the media program at the timeof the placeshifting request, the placeshifting application 110 mayanalyze or otherwise process the encoded stream such that theplaceshifted media program is initially presented on the display 112 at(or as close as possible to) the same location (or timestamp) within themedia program with playback in the paused state.

In other embodiments, if the display status metadata indicates that themedia program on the primary display device 102 was not paused at thetime of the placeshifting request, the placeshifting application 110 mayanalyze or otherwise process the encoded stream such that theplaceshifted media program is initially presented on the display 112 at(or as close as possible to) a location (or timestamp) within the mediaprogram corresponding to the current time identified by theplaceshifting application 110 and/or client device 104 with playback inthe playing state. In this manner, the media program presented on theprimary display device 102 may be effectively streamed directly to theclient device 104 over the network 108 via the peer-to-peercommunication session 109 and synchronized as close as possible to theconcurrent presentation of the media program on the primary displaydevice 102. In other embodiments, the presentation of the media programon the primary display device 102 may cease in response to theplaceshifting request, in which case the placeshifted media program maybe initially presented on the display 112 at (or as close as possibleto) a location (or timestamp) within the media program corresponding tothe time of the placeshifting request with playback in the playingstate, such that the media program presented on the primary displaydevice 102 is effectively transferred from the primary display device102 to the client device 104.

In exemplary embodiments, after the user of the client device 104 hasinitiated playback or streaming of the placeshifted media program on thedisplay 112, the media device 106 continues encoding and transmittingthe remainder of the media program to the client device 104 via thepeer-to-peer communication session 109. The placeshifting application110 may continue by buffering the received encoded stream for theplaceshifted media program and/or presenting the placeshifted mediaprogram on the display 112 until the user manipulates the placeshiftingapplication 110 to terminate playback. In this regard, when the usermanipulates the placeshifting application 110 to terminate playback, theplaceshifting application 110 may notify the media device 106 to stopencoding and transmitting the media program before terminating thepeer-to-peer communication session 109.

In alternative embodiments, if the user of the client device 104manipulates or otherwise selects a GUI element to postpone playback ofthe media program, the placeshifting application 110 stores, buffers, orotherwise maintains the media program with the second encoding format inthe memory 120. In this regard, the user of the client device 104 maysubsequently manipulate the placeshifting application 110 to select orotherwise initiate playback of the placeshifted media program stored inmemory 120. The placeshifting application 110 may also store orotherwise maintain, in memory 120 in association with the placeshiftedmedia program, the received metadata describing the status of that mediaprogram on the primary display device 102 at the time of theplaceshifting request to correlate the subsequent playback on thedisplay 112. For example, if the metadata indicates that the mediaprogram on the primary display device 102 was at a particular location(or timestamp) within the media program at the time of the placeshiftingrequest, the placeshifting application 110 may utilize the displaystatus metadata to analyze or otherwise process the stored media programsuch that the placeshifted media program is initially presented on thedisplay 112 at (or as close as possible to) the same location (ortimestamp) within the media program that was displayed on the primarydisplay device 102 at the time of the placeshifting request. In thisregard, in some embodiments, after the user of the client device 104 hasmanipulated the placeshifting application 110 to store the placeshiftedmedia program, the placeshifting application 110 may notify the mediadevice 106 to encode and transmit portions of the media program thatpreceded placeshifting request and are stored in or otherwise bufferedby the DVR 134, the memory 146 and/or the control module 130.

Still referring to FIG. 2, it should be noted that in some embodiments,the placeshifting process 200 may verify or otherwise determine that thesubscriber account information associated with the media device allowsfor placeshifting of the media content presented on the primary displaydevice to secondary devices. For example, in response to a placeshiftingrequest, the media device 106 and/or control module 130 may check theaccess card 139 to verify or otherwise confirm the subscriber accountinformation associated with the primary display device 102 allows theselected broadcast media program to be viewed on a secondary devicebefore providing the selected broadcast media program stream to theclient device 104. Additionally, the media device 106 and/or controlmodule 130 may verify or otherwise confirm that placeshifting of theselected media program is authorized by its associated content providerprior to placeshifting the selected media program. Furthermore, itshould be noted that in some embodiments, once media content isplaceshifted to the client device 104, the primary display device 102may be utilized to present other media content. For example, while abroadcast media program is being streamed to the client device 104 fromthe media device 106, another viewer of the primary display device 102may manipulate the user input device 148 to initiate presentation of astored media program on the DVR 134 on the primary display device 102.

FIG. 3 depicts an exemplary embodiment of a pairing process 300 suitablefor implementation by media device in a media system, such as mediadevice 106, in conjunction with the placeshifting process 200 of FIG. 2to establish an association between a secondary display device and amedia device that supports automatically placeshifting media contentfrom the primary display device to the paired secondary devicesubstantially in real-time or on-demand. The various tasks performed inconnection with the illustrated process 300 may be implemented usingsoftware, hardware, firmware, or any combination thereof. Forillustrative purposes, the following description may refer to elementsmentioned above in connection with FIG. 1. In practice, portions of thepairing process 300 may be performed by different elements of the mediadevice 106, such as, for example, the control module 130, the receiverinterface 132, the display interface 136, the network interface 140, thememory 146, the sensing arrangement 142 and/or the I/O interface 144. Itshould be appreciated that the pairing process 300 may include anynumber of additional or alternative tasks, the tasks need not beperformed in the illustrated order and/or the tasks may be performedconcurrently, and/or the pairing process 300 may be incorporated into amore comprehensive procedure or process having additional functionalitynot described in detail herein. Moreover, one or more of the tasks shownand described in the context of FIG. 3 could be omitted from a practicalembodiment of the pairing process 300 as long as the intended overallfunctionality remains intact.

Referring to FIG. 3, and with continued reference to FIGS. 1-2, in someembodiments, the pairing process 300 may be initialized by a viewer ofthe primary display device 102 manipulating the user input device 148 orotherwise making a gesture 150 to provide an indication to the mediadevice 106 of a desire to pair a secondary display device with the mediadevice 106. For example, the viewer may manipulate the user input device148 to access a GUI menu feature provided by the media device 106 andmanipulate or otherwise select a GUI element that initiates the pairingprocess 300. The pairing process 300 begins by discovering, detecting orotherwise identifying secondary devices proximate to or otherwise withinthe vicinity of the media device and presenting or otherwise displayinga GUI display that indicates the detected secondary devices (tasks 302,304). For example, in response to the viewer indicating a desired topair a secondary device with the media device 106, the control module130 may enable or otherwise operate the network interface 140 to connectto the network 108 (e.g., in the case of WLAN) or establish the network108 (e.g., in the case of an ad-hoc PAN such as a Bluetooth network).Thereafter, the media device 106 may scan the network 108 to discover,detect or otherwise identify secondary devices connected to the network108, such as, client device 104. The media device 106 may obtain, foreach detected device, unique identification information associated withthat detected device that is broadcasted or otherwise made available bythat respective detected device. Using the identification information,the media device 106 may generate or otherwise provide a GUI display onthe primary display device 102 that includes a list, menu, or some othergraphical representation of the detected devices within the vicinity ofthe media device 106.

In exemplary embodiments, the pairing process 300 continues by receivingan indication of the desired secondary device to be paired with themedia device and storing or otherwise maintaining network identificationinformation for that secondary device (tasks 306, 308). For example, aviewer of the primary display device 102 may manipulate the user inputdevice 148 or otherwise making a gesture 150 to select the client device104 from among the list of secondary devices detected by the mediadevice 106 and thereby provide an indication to the media device 106 ofa desire to pair the client device 104 with the media device 106. Inresponse, the media device 106 stores or otherwise maintains, the uniqueidentification information associated with client device 104 in memory146 in association with an indication that the stored networkidentification information corresponds to a paired secondary device.Additionally, the media device 106 may utilize the identificationinformation for the client device 104 to contact the placeshiftingapplication 110 via the network 108 to obtain additional information forfacilitating/establishing the peer-to-peer communication session 109,such as, for example, authentication information for communicating withthe placeshifting application 110. After the pairing process 300 iscompleted, the media device 106 may utilize the stored identificationinformation to detect or otherwise identify the client device 104 as apossible destination device (e.g., task 212) in conjunction with theplaceshifting process 200, as described above.

FIG. 4 depicts an exemplary sequence 400 of communications within themedia system 100 of FIG. 1 in accordance with an exemplary embodiment ofthe placeshifting process 200 described above. As described above in thecontext of the pairing process 300 of FIG. 3, the sequence 400 beginswith the media device 106 receiving 402 an indication of a desire topair a secondary display device with the media device 106 in response toa viewer of the primary display device 102 manipulating the user inputdevice 148 or making a particular gesture 150. In response to receivingthe indication, the media device 106 communicates 404 with the clientdevice 104 via the network 108 by scanning the network 108 to detect thepresence of the client device 104 and obtain identification informationfor the client device 104 (e.g., task 302). Thereafter, the media device106 presents or otherwise provides 406 a GUI display on the primarydisplay device 102 that lists or otherwise indicates the client device104 as being detected on the network 108 or otherwise in the vicinity ofthe media device 106 (e.g., task 304). Subsequently, the media device106 receives 408 an indication of a desire to pair the client device 104(e.g., task 306) in response to the viewer further manipulating the userinput device 148 or making another gesture 150 to select the clientdevice 104 indicated on the primary display device 102. Thereafter, themedia device 106 stores or otherwise maintains the obtainedidentification information that is unique to the client device 104 inmemory 146 to maintain the association with the client device 104.

After the client device 104 has been paired with the media device 106,the media device 106 may receive 410, from the viewer, a selection orindication of a particular media program available from the contentsource (e.g., broadcast source 122 or DVR 134) for presentation on theprimary display device 102, wherein in response to identifying theselected media program (e.g., task 204), the media device 106 obtains412 the content stream for the selected media program from the contentsource and provides 414 the content stream for the selected mediaprogram to the primary display device 102 in the uncompressed videoencoding format (e.g., task 206). While the media program is beingpresented on the primary display device 102, the media device 106receives 416 an indication of a desire to placeshift the media programfrom the primary display device 102 to a paired secondary display device(e.g., task 208). For example, as described above, the sensingarrangement 142 may detect a gesture 150 by a viewer of the primarydisplay device 102 that matches a predefined pattern of movement that isdesignated as representing a desire to placeshift the media programpresented on the primary display device 102.

In response to receiving 416 a placeshifting request, the media device106 identifies the client device 104 as the destination device (e.g.,task 212) and automatically establishes 418 the peer-to-peercommunication session 109 with the client device 104 using the uniqueidentification information stored in memory 146 for the client device104 (e.g., task 214), as described above. The media device 106 encodesthe content stream obtained 412 from the content source into an encodingformat suitable for transmission over the network 108 and subsequentdisplay on the client device 104 (e.g., task 216) and automaticallytransfers or otherwise transmits 420 the encoded stream corresponding tothe media program presented on the primary display device 102 to theclient device 104 over the network 108 via the peer-to-peercommunication session 109. Thereafter, a user of the client device 104may interact 422 with the client device 104 (e.g., by manipulating GUIelements presented by the placeshifting application 110) to initiateplayback or storage of the placeshifted media program by the clientdevice 104 in a similar manner as described above. Additionally, asdescribed above, the media device 106 may capture or otherwise obtainmetadata describing the display status of the selected media program onthe primary display device 102 when the placeshifting request isreceived 416 and provide that metadata to the client device 104 tocorrelate the subsequent playback of the placeshifted media program onthe client device 104 with the presentation on the primary displaydevice 102. For example, the display status metadata may be utilized tocorrelate the playback on the client device 104, such that theplaceshifted media program is presented on the client device 104concurrently and/or substantially in sync with the instance of the mediaprogram on the primary display device 102. Alternatively, playback ofthe placeshifted media program on the client device 104 may resume atthe same location within the media program that was presented on theprimary display device 102 when the media device 106 received 416placeshifting request.

FIG. 5 depicts another embodiment of a media system 500 configured tosupport transferring or otherwise placeshifting a media program (ormedia content) available for presentation on a primary display device102 via a media device 106 to a client device 104 that has been pairedwith the media device 106. Various components, features, functions,and/or other details of the elements of the media system 500 are similarto their counterpart elements described above in the context of themedia system 100 of FIG. 1, and accordingly, such common components,features, functions, and/or other details will not be redundantlydescribed in the context of FIG. 5.

In media system 500, rather than the media device 106 establishing apeer-to-peer communication session with the client device 104 via anetwork 508 (e.g., network 108), the media device 106 providesinformation identifying the destination device (e.g., client device 104)and the media program presented on the primary display device 102 to acontent server 502 coupled to another network 506. The content server502 then utilizes the information received from the media device 106 toautomatically establish a peer-to-peer communication session 509 withthe client device 104 via network 506 and transfer or otherwise transmitan encoded stream of content corresponding to the identified mediaprogram to the client device 104 via the peer-to-peer communicationsession 509 with the client device 104 over network 506. In this regard,the network 506 may be physically and/or logically distinct from thenetwork 508 used by the media device 106 to establish the pairing withthe client device 104. For example, the network 508 may be realized asan ad-hoc network, a Bluetooth network, a PAN, or a WLAN or the like,while the network 506 is realized as the Internet, a cellular network, abroadband network, a wide area network, or the like.

The content server 502 may be implemented with any sort of servercomputer system or data processing system that is based upon anyprocessor, architecture and/or operating system, and will typicallyinclude a processing system (or processing hardware), a data storageelement (or memory), and various input/output features. Additionally,the content server 502 may be implemented using one or more dedicated orshared hardware servers, one or more virtual servers features as part ofa “cloud computing” service, or any other suitable combination orcluster of servers. In exemplary embodiments, the content server 502 iscoupled to the various content providers within the media system 500,such as the broadcast source 122, to obtain media content available forpresentation on the primary display device 102. In this regard, thecontent server 502 may include or otherwise be coupled to a database504, wherein the content server 502 copies, records, or otherwise storesinstances of media programs available from the content sources withinthe media system 500. For example, for a broadcast content source 122,the content server 502 may record or otherwise copy individual contentstreams corresponding to the individual media programs broadcast on thevarious broadcast channels supported by the broadcast content source 122into individual content files stored on the content database 504.Depending on the embodiment, the content server 502 may store thecontent streams in content files having the same encoding format as thatused by the broadcast source 122 to provide the media programs to themedia device 106 (e.g., the broadcast encoding format), oralternatively, the content server 502 may convert or transcode contentstreams received from the broadcast source 122 into content files havinga different encoding format other than the broadcast encoding format. Insome embodiments, multiple instances of a particular media program maybe stored in the content database 504 using different content files witheach content file having a different encoding format.

FIG. 6 depicts an exemplary embodiment of a server placeshifting process600 suitable for implementation by a server in a media system, such ascontent server 502, to placeshift media content available forpresentation on a primary display device to a secondary display devicepaired with a media device associated with the primary display device.The various tasks performed in connection with the illustrated process600 may be implemented using software, hardware, firmware, or anycombination thereof. For illustrative purposes, the followingdescription may refer to elements mentioned above in connection withFIGS. 1-5. In practice, portions of the server placeshifting process 600may be performed by different elements of the media system 500, such as,for example, the content server 502, the content database 504, the mediadevice 106 and/or the client device 104. It should be appreciated thatthe server placeshifting process 600 may include any number ofadditional or alternative tasks, the tasks need not be performed in theillustrated order and/or the tasks may be performed concurrently, and/orthe server placeshifting process 600 may be incorporated into a morecomprehensive procedure or process having additional functionality notdescribed in detail herein. Moreover, one or more of the tasks shown anddescribed in the context of FIG. 6 could be omitted from a practicalembodiment of the server placeshifting process 600 as long as theintended overall functionality remains intact.

Still referring to FIGS. 5-6, in a similar manner as described above inthe context of FIG. 1-4, in exemplary embodiments, prior to execution ofthe server placeshifting process 600, the media device 106 detects orotherwise identifies the client device 104 on the network 508 andestablishes an association with the client device 104, for example, byperforming pairing process 300. As described above, during the pairingprocess, the media device 106 obtains, from the client device 104 vianetwork 508, unique identification information associated with theclient device 104 that may be utilized to locate the client device 104on the network 506 along with any authentication information or otherinformation that may be required to establish a peer-to-peercommunication session 509 with the client device 104 via network 506,and the media device 106 stores the obtained information (e.g., inmemory 146). Thereafter, during presentation of a media program on theprimary display device 102, the media device 106 identifies or otherwisereceives a placeshifting request in a similar manner as described above,for example, by detecting a placeshifting request gesture 150. Inresponse to receiving the placeshifting request, the media device 106obtains metadata describing the display status of the media program onthe primary display device 102 and identifies the client device 104 asthe desired destination device. Thereafter, the media device 106 obtainsthe stored identification information associated with the client device104 from memory 146 and transmits or otherwise provides, to the contentserver 502 (e.g., via network 506), the stored identificationinformation and/or authentication information for the client device 104along with information identifying the media program currently beingpresented on the primary display device 102 and the obtained displaystatus metadata.

Referring to FIGS. 5-6, the server placeshifting process 600 begins withthe content server receiving, from the media device, identificationinformation for the destination device along with identificationinformation and display status metadata for the media program on theprimary display device (tasks 602, 604, 606). In exemplary embodiments,the server placeshifting process 600 continues with the content serverdetermining or otherwise identifying the appropriate encoding format forthe instance of the media program to be provided to the destinationdevice (task 608). In this regard, the content server 502 may determinethe appropriate encoding format based on the identification informationfor the client device 104 and/or characteristics of the network 506. Forexample, the content server 502 may determine a device type (e.g.,mobile phone, tablet computer, desktop computer, or the like) of theclient device 104 based on the identification information for the clientdevice 104, and thereby identify the appropriate content file type (orfile extension) for subsequent display and/or rendering by that type ofsecondary display device. Additionally, the content server 502 maydetermine the appropriate encoding resolution (or quality) based on thedevice type and/or performance characteristics of the network 506 (e.g.,the amount of bandwidth accessible and/or throughput achievable over thenetwork 506 between the content server 502 and the client device 104).In some embodiments, the content server 502 may support adaptive bitratestreaming to the client device 104 using feedback from the client device104 to increase and/or decrease the resolution.

In exemplary embodiments, the content server 502 accesses the contentdatabase 504 to obtain an instance of the identified media program inthe identified encoding format. If the identified media program is notavailable in the desired encoding format, the content server 502converts or otherwise transcodes an instance of the identified mediaprogram in the content database 504 to the desired encoding format. Inthe case of a live broadcast media program that may not be available inthe content database 504, the content server 502 may buffer thebroadcast media program received from the broadcast content source 122and convert the broadcast media program from the broadcast encodingformat used by the broadcast content source 122 (e.g., MPEG-2) to thedesired encoding format for placeshifting to the client device 104(e.g., H.264) on-the-fly and substantially in real-time such that thebroadcast media program is effectively being streamed to the clientdevice 104 via the content server 502.

After identifying the appropriate encoding format for placeshifting theidentified media program to the destination device, the serverplaceshifting process 600 continues by automatically establishing apeer-to-peer communication session with the destination device andtransferring, transmitting, or otherwise providing the identified mediaprogram to the destination device to the destination device via thepeer-to-peer communication session in the identified encoding format(tasks 610, 612). In a similar manner as described above, the contentserver 502 utilizes the identification information for the client device104 to locate the client device 104 on the network 506 and automaticallyestablishes a peer-to-peer communication session 509 with theplaceshifting application 110 on the client device 104 by using theidentification information and/or authentication information to transmita connection request to the client device 104 and/or authenticate thecontent server 502 with the placeshifting application 110. Once thecontent server 502 obtains the identified media program in the desiredencoding format, the content server 502 encapsulates or otherwiseencodes the media program into an encoded content stream that istransmitted or otherwise transferred to the client device 104 via thepeer-to-peer communication session 509.

In one or more exemplary embodiments, the content server 502 providesthe encoded media program to the client device 104 in accordance withthe metadata describing the display status of the media program on theprimary display device 102. In this regard, the content server 502 mayprocess the media content so that the encoded stream provided to theclient device 104 begins or otherwise initializes at (or as close aspossible to) the location (or timestamp) within the media programcorresponding to when the placeshifting request was received by themedia device 106. For example, when encapsulating the media program intothe encoded content stream, the content server 502 may obtain thecontent file for the media program from the content database 504 andtruncate or otherwise disregard the portion of the content filecorresponding to locations within the media program preceding when theplaceshifting request was received, such that the encoded content streambegins at the location when the placeshifting request was received. Inalternative embodiments, the content server 502 may merely provide themetadata describing the display status of the media program on theprimary display device 102 to the placeshifting application 110, which,in turn, utilizes the display status metadata to control playback of theplaceshifted media program on the client device 104.

FIG. 7 depicts an exemplary sequence 700 of communications within themedia system 500 of FIG. 5 in accordance with an exemplary embodiment ofthe server placeshifting process 600 after the client device 104 hasbeen paired with the media device 106 via the network 508. Again, afterthe client device 104 has been paired with the media device 106, themedia device 106 may receive 702, from the viewer, a selection orindication of a particular media program available from a content source(e.g., broadcast source 122 or DVR 134) for presentation on the primarydisplay device 102. After identifying the selected media program, themedia device 106 obtains 704 a content stream for the selected mediaprogram from the content source and provides 706 the content stream forthe selected media program to the primary display device 102 in theappropriate encoding format. Thereafter, while the media program isbeing presented on the primary display device 102, the media device 106receives 708 a placeshifting request from the viewer (e.g., by detectinga gesture 150 by the viewer that matches a designated placeshiftingrequest gesture).

In response to receiving 708 the placeshifting request, the media device106 identifies the client device 104 as the destination device, capturesmetadata describing the display status of the selected media programprovided 706 to the primary display device 102, and transmits orotherwise provides 710 the stored identification information for theclient device 104 along with the display status metadata and anidentification of the media program to be placeshifted to the contentserver 502 (e.g., via network 506). Additionally, in some embodiments,the information provided 710 to the content server 502 may also includesubscriber account information obtained by the media device 106 from theaccess card 139. In this regard, before placeshifting content to theclient device 104, the content server 502 may confirm or otherwiseverify that placeshifting the identified media program to the clientdevice 104 is authorized or otherwise allowed based on the subscriberaccount information. For example, subscriber account information for thesubscriber associated with the media device 106 may restrict what mediaprograms may be placeshifted, wherein the content server 502 enforcesthose restrictions before providing content to the client device 104. Inthis regard, the subscriber account information may allow media programsstored on the subscriber's DVR 134 to be placeshifted while restrictingplaceshifting of live broadcast media programs from the broadcastcontent source 122, wherein the content server 502 analyzes thesubscriber account information received from the media device 106 andprevents placeshifting to the client device 104 when the identifiedmedia program is currently being broadcast by the broadcast contentsource 122. It should be noted that there are numerous possibilities forhow subscriber account information can be used to regulate or otherwiserestrict placeshifting, and the subject matter described herein is notintended to be limited to any particular implementation.

In the illustrated embodiment of FIG. 7, after the content server 502receives 710 information from the media device 106 determinesplaceshifting the identified media program to the client device 104 isauthorized for the subscriber (or customer) associated with the mediadevice 106, the content server 502 accesses the content database 504 toobtain 712 an instance of the identified media program. As describedabove in the context of FIG. 6, the content server 502 may identify theappropriate encoding format for the client device 104 based on theidentification information for the client device 104 and/orcharacteristics of the network 506 and select the instance of theidentified media program in the content database 504 that is alreadyencoded with that identified encoding format. In other embodiments, ifthe content database 504 does not maintain an instance of the identifiedmedia program in the desired encoding format, the content server 502 mayconvert an instance of the identified media program from the contentdatabase 504 into a content stream with the desired encoding format(e.g., by decoding then re-encoding into the desired encoding format).

As described above, the content server 502 utilizes the identificationinformation for the client device 104 on the network 506 toautomatically establish 714 the peer-to-peer communication session 509with the placeshifting application 110 on the client device 104 via thenetwork 506 and transmit or otherwise provide 716 the encoded contentstream for the identified media program with the desired encoding formatto the placeshifting application 110 via the peer-to-peer communicationsession 509. Thereafter, the viewer may manipulate or otherwise interact718 with the placeshifting application 110 on the client device 104 toinitiate playback of the placeshifted media program or store theplaceshifted media program on the client device 104 for subsequentviewing. As described above, the display status metadata captured by themedia device 106 may be utilized to correlate the playback on the clientdevice 104, such that the placeshifted media program may be presented onthe client device 104 concurrently and/or substantially in sync with theinstance of the media program on the primary display device 102.Alternatively, playback of the placeshifted media program on the clientdevice 104 may resume at the same location within the media program thatwas presented on the primary display device 102 at the time of theplaceshifting request, such that the media program is effectivelytransferred from the primary display device 102 to the client device 104via the content server 502.

By virtue of the subject matter described herein, a media programpresented on a primary display device, such as a television, maybetransferred or placeshifted from the primary display device to asecondary display device substantially in real-time via a “on-demand”peer-to-peer communication session established with the secondarydisplay device in response to a placeshifting request. In this regard,by pairing the secondary display device with the media device associatedwith the primary display device, identification information for thesecondary display device may be utilized to establish the peer-to-peercommunication session and facilitate placeshifting with limited userinteraction required. For example, as described above, when the mediadevice associated with the primary display device is capable ofdetecting or otherwise recognizing a placeshifting request gesture, theviewer of the primary display device merely performs the placeshiftingrequest gesture to initiate transfer of the media program concurrentlybeing presented on the primary display device to the paired secondarydisplay device. To begin playback of the placeshifted media program onthe secondary display device, the viewer does not need to manually inputlogin information or other authorization information, manually locate orotherwise select the media program for presentation, or manually advancea selected media program to a location within the media program to whichthe viewer has already progressed. Rather, a placeshifting applicationon the secondary display device may allow the viewer to control playbackor otherwise manage the placeshifted media program on the secondarydisplay device with reduced manual overhead (i.e., without requiringuser logins, user selection of the media program, fast-forwarding and/orrewinding, etc.).

The general systems, structures and techniques described above may beinter-combined, enhanced, modified and/or otherwise implemented toprovide any number of different features. In particular, the term“exemplary” is used herein to represent one example, instance orillustration that may have any number of alternates. Any implementationdescribed herein as “exemplary” should not necessarily be construed aspreferred or advantageous over other implementations.

The subject matter may be described herein in terms of functional and/orlogical block components, and with reference to symbolic representationsof operations, processing tasks, and functions that may be performed byvarious computing components or devices. It should be appreciated thatthe various block components shown in the figures may be realized by anynumber of hardware, software, and/or firmware components configured toperform the specified functions. For example, an embodiment of a systemor a component may employ various integrated circuit components, e.g.,memory elements, digital signal processing elements, logic elements,look-up tables, or the like, which may carry out a variety of functionsunder the control of one or more microprocessors or other controldevices. Furthermore, the connecting lines shown in the various figurescontained herein are intended to represent exemplary functionalrelationships and/or physical couplings between the various elements. Itshould be noted that many alternative or additional functionalrelationships or physical connections may be present in an embodiment ofthe subject matter. In addition, certain terminology may also be usedherein for the purpose of reference only, and thus are not intended tobe limiting. For example, terms such as “first,” “second” and other suchnumerical terms referring to structures do not imply a sequence or orderunless clearly indicated by the context.

While several exemplary embodiments have been presented in the foregoingdetailed description, it should be appreciated that a vast number ofalternate but equivalent variations exist, and the examples presentedherein are not intended to limit the scope, applicability, orconfiguration of the invention in any way. To the contrary, variouschanges may be made in the function and arrangement of the variousfeatures described herein without departing from the scope of the claimsand their legal equivalents. Accordingly, details of the exemplaryembodiments or other limitations described above should not be read intothe claims absent a clear intention to the contrary.

What is claimed is:
 1. A method of placeshifting a media programavailable for presentation on a primary display device in a first formatvia a media device coupled to the primary display device, the methodcomprising: storing, by the media device, identification information fora client device coupled to a network; receiving, by the media device, arequest to transfer the media program; and in response to the request:establishing a peer-to-peer communication session with the client deviceover the network using the identification information; and transferringan encoded content stream corresponding to the media program to theclient device via the peer-to-peer communication session, the encodedcontent stream having a second format that is different from the firstformat.
 2. The method of claim 1, the media device including a sensingarrangement capable of detecting gestures in a vicinity of the primarydisplay device, wherein receiving the request comprises the media devicedetecting a placeshifting request gesture via the sensing arrangement.3. The method of claim 2, further comprising generating, by the mediadevice, the encoded content stream having the second format in responseto detecting the placeshifting request gesture.
 4. The method of claim3, further comprising providing, by the media device, a first contentstream corresponding to the media program to the primary display device,the first content stream having the first format, wherein generating theencoded content stream comprises the media device converting the firstcontent stream from the first format to the second format.
 5. The methodof claim 3, further comprising providing, by the media device, a firstcontent stream corresponding to the media program to the primary displaydevice, the first content stream having the first format, whereingenerating the encoded content stream comprises encapsulating the firstcontent stream for transmission via the network.
 6. The method of claim1, further comprising: providing, by the media device, a first contentstream corresponding to the media program to the primary display device,the first content stream having the first format; and generating, by themedia device, the encoded content stream by converting the first contentstream from the first format to the second format in response to therequest prior to the media device transferring the encoded contentstream via the peer-to-peer communication session between the mediadevice and the client device.
 7. The method of claim 1, whereintransferring the encoded content stream to the client device via thepeer-to-peer communication session comprises the media device streamingthe media program to the client device in the second format via thepeer-to-peer communication session between the media device and theclient device.
 8. The method of claim 1, further comprising: detecting,by the media device, presence of the client device in a vicinity of themedia device; and obtaining, by the media device, the identificationinformation from the client device in response to detecting the presenceof the client device.
 9. The method of claim 1, the media device beingcoupled to the network, the method further comprising: detecting, by themedia device, the client device on the network; and obtaining, by themedia device, the identification information from the client device viathe network prior to storing the identification information, wherein themedia device establishes the peer-to-peer communication session with theclient device over the network using the identification information inresponse to the request and transfers the encoded content stream to theclient device via the peer-to-peer communication session between themedia device and the client device.
 10. The method of claim 1, furthercomprising transferring, by the media device, the identificationinformation associated with the client device to a server coupled to thenetwork in response to the request, wherein the server establishes thepeer-to-peer communication session with the client device over thenetwork using the identification information and transfers the encodedcontent stream to the client device.
 11. The method of claim 10, themedia device including a sensing arrangement capable of detectinggestures in a vicinity of the primary display device, wherein receivingthe request comprises the media device detecting a placeshifting requestgesture via the sensing arrangement.
 12. The method of claim 1, furthercomprising: obtaining, by the media device in response to the request,display status information for the media program on the primary displaydevice when the request is received; and transferring the display statusinformation to the client device, wherein presentation of the mediaprogram on the client device is influenced by the display statusinformation.
 13. The method of claim 1, further comprising obtaining, bythe media device in response to the request, display status informationindicating a portion of the media program presented on the primarydisplay device when the request is received, wherein transferring theencoded content stream comprises providing the portion of the mediaprogram at a beginning of the encoded content stream transferred to theclient device such that the portion of the media program is initiallypresented on the client device when playback of the media program on theclient device is initiated.
 14. A media device comprising: a firstinterface configured to provide a first content stream corresponding toa media program to a primary display device, the first content streamhaving a first format; a network interface configured to communicate viaa network; a data storage element configured to maintain identificationinformation for a client device communicatively coupled to the network;an input element configured to receive a placeshifting request; and acontrol module coupled to the data storage element, the input element,and the network interface, wherein in response to the placeshiftingrequest, the control module is configured to establish a peer-to-peercommunication session with the client device over the network using theidentification information and transfer a second content streamcorresponding to the media program to the client device via thepeer-to-peer communication session, the second content stream having asecond format different from the first format.
 15. The media device ofclaim 14, wherein: the input element comprises a sensing arrangementconfigured to detect an environmental condition in a vicinity of theprimary display device; and the control module is configured to identifythe placeshifting request based on the environmental condition detectedby the sensing arrangement.
 16. The media device of claim 15, wherein:the sensing arrangement is configured to detect gestures by a viewer inthe vicinity of the primary display device; and the control module isconfigured to identify the placeshifting request in response torecognizing a gesture detected by the sensing arrangement as aplaceshifting request gesture.
 17. A method of placeshifting a mediaprogram, the method comprising: associating a client device with a mediadevice coupled to a primary display device; providing the media programto the primary display device via the media device; detecting, by themedia device, a placeshifting request gesture while providing the mediaprogram to the primary display device; and in response to theplaceshifting request gesture: establishing a peer-to-peer communicationsession with the client device over a network based on the associationwith the media device; and providing the media program to the clientdevice over the network via the peer-to-peer communication session. 18.The method of claim 17, wherein associating the client device with themedia device comprises: detecting, by the media device, presence of theclient device in a vicinity of the media device; obtaining, by the mediadevice from the client device, identification information for the clientdevice; and storing, by the media device, the identification informationfor the client device.
 19. The method of claim 18, further comprisingproviding, by the media device, the identification information to aserver coupled to the network in response to the placeshifting requestgesture, wherein the server establishes the peer-to-peer communicationsession with the client device over the network based on theidentification information and provides the media program to the clientdevice over the network via the peer-to-peer communication session 20.The method of claim 19, wherein: providing the media program to theprimary display device via the media device comprises the media deviceproviding a first content stream of the media program to the primarydisplay device, the first content stream having a first format; andproviding the media program to the client device comprises the serverproviding a second content stream of the media program to the clientdevice, the second content stream having a second format different fromthe first format.